amyhir,
It is my experience is that nothing replaces the color that is bleached out by the Chlorine. It may be easier to just replace the discolored pavers that are affected. It is pretty simple to do. Good luck.

Thanks Golfgeek, it appears that I am stuck. The company that manufactured my pavers went out of business after 75 years.

Try Gator Eflo clean. They may just have efflorescence bleeding through.

IF... The problem is efflorescence then these pointers might help future Houzz'ers with the same problem:

What is Efflorescence and How Can I Clean It?

https://www.paverwash.com/efflorescence-can-clean/

If it is bleach damage, and since the pavers can't be purchased, might try chiseling out the grout and turn over the damaged pavers, after cleaning them. Just a thought.